JPH07292983A - Reinforcement supporting device - Google Patents

Abstract

PURPOSE:To prevent chipping of cross sections by constructing upper and lower columns each of angles, forming a V-shaped guide using the angles of either of the columns, and fitting the angles constituting the other column into the V-shaped guide, thus vertically movably connecting both columns together. CONSTITUTION:Angles 3, 4 constituting a lower column 1 are arranged in symmetry with their apex-angle portions 3a, 4a facing inward, and a V-shaped guide is foamed by their adjacent sides 3b, 4b. An upper column 5 is fitted into the V-shaped guide and is guided vertically by the joining together of their surfaces. A connecting member 8 is welded and suspended between the sides 3b, 4b above the lower column 1, and the inside of the apex-angle portion of the upper column 5 is pressed by the fastening of a tightening bolt 9 to hold both columns 1, 5 in position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing bar supporting device used for supporting reinforcing bars in the work of arranging basic reinforcing bars.

[0002]

2. Description of the Related Art Conventionally, a reinforcing bar supporting device has been used to support a reinforcing bar at a predetermined position in various reinforcing work (Japanese Utility Model Publication No. 60-32259, 4-118).
63, Japanese Utility Model Publication No. 4-86813). FIG. 7 shows a conventional example relating to the reinforcing bar supporting device. As shown, the rebar support device has a base plate 1 at the bottom.
01 is fixed to the lower support column 102, and an upper support column 105 which is vertically coupled to the lower support column 102 and has a reinforcing bar supporting portion 104 for supporting the reinforcing bar 103 on the upper part thereof. In the case of this conventional example, the lower support column 102 is composed of two angle members, and the upper support column 105 made of a pipe material is vertically movable inside the cylindrical holding guide member 106 welded to the upper end portion thereof. The height can be adjusted by inserting it. In the figure, 107 is a fastening bolt for fixing.

[0003]

By the way, in the above-mentioned conventional reinforcing bar supporting device, since the pipe material is used as the upper column 105, it is difficult for the concrete to flow into the interior of the pipe material when pouring the concrete, and the cross section is There was a problem that defects tended to occur. Further, in order to vertically guide the upper column 105 made of the pipe material, a cylindrical holding guide member 106 is required in addition to the lower column 102. Moreover, the upper support column 105 contacts the inner peripheral surface of the holding member 106 and the outer peripheral surface of the pipe member,
Since it is vertically guided and is fixed to the lower column 102 at the same time, a certain processing accuracy is required for the fitting portion between the two in order to ensure its function. The present invention has been made in view of such conventional technical circumstances,
The purpose is to: (1) To prevent the occurrence of cross-section loss by eliminating the part where concrete does not easily flow in during pouring. (2) Simplify the configuration for vertically guiding and fixing between the lower support and the upper support. (3) A strut structure having sufficient rigidity is formed at a lower cost.

[0004]

According to the present invention, in order to solve the above-mentioned problems, each of the lower support and the upper support is made of an angle member, and a V-shaped guide portion is formed by an angle member forming one of the supports. It is characterized in that, while being formed, the V-shaped guide portion is fitted with the angle member that constitutes the other strut so that the both can be moved up and down.

[0005]

According to the present invention, since the lower strut and the upper strut are made of an angle member and there is no closed space, there is no portion where concrete is hard to flow into when pouring, and the occurrence of cross-section loss is prevented. Moreover, since the upper and lower struts are made of angle members, a strut structure having sufficient rigidity can be obtained at low cost. In addition, by forming the V-shaped guide portion with the angle material forming one of the columns and fitting the angle material forming the other column, the shape of the angle material can be used as it is to guide the both up and down. Therefore, the configuration can be simplified. Also, since it is a V-shaped guide structure, it is guided in a more closely contacting direction according to the tightening force of the tightening bolts.
A strong fixed state can be easily obtained and the upper and lower sides can be freely opened by loosening the tightening bolt, so that the fitting portion is not required to have the conventional processing accuracy.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing an entire embodiment of the present invention, FIG. 2 is an AA enlarged cross-sectional view thereof, and FIG. 3 is a BB enlarged cross-sectional view showing a main portion with a further increased magnification. . 1 in the figure
Is a lower column whose lower part is fixed to the base plate 2.
It is composed of angle members 3 and 4 of a book. Reference numeral 5 is an upper column composed of one angle member, and a reinforcing bar supporting portion 7 for supporting the reinforcing bar 6 is formed at the upper end thereof. The reinforcing bar supporting device is composed of the lower column 1 and the upper column 5. As will be described later, these two columns 1 and 5 are vertically movably fitted to each other via a V-shaped guide portion formed by the angle members 3 and 4 of the lower column 1, so that the height can be adjusted. . In the figure, 8 is a connecting member and 9 is a tightening bolt.

Next, the V-shaped guide portion will be described with reference to FIGS. 2 and 3. As shown in the figure, in this embodiment, the angle members 3 and 4 forming the lower support column 1 are symmetrically arranged so that the respective apex angle portions 3a and 4a face inward, and the adjacent one side V by 3b and 4b
It forms a shape guide. The upper support column 5 is fitted in the V-shaped guide portion and is configured to be guided in the vertical direction by surface-joining them. The connecting member 8 is erected by welding or the like between the upper sides 3b and 4b of the lower support 1, and the tightening bolt 9 is screwed in to press the inside of the top corner of the upper support 5. It is configured to fix both columns 1 and 5. The connecting member 10 is also installed between the sides 3c and 4c on the opposite side of the connecting member 8. The connecting member 10 may be formed continuously with the connecting member 8 and wound around the angle members 3 and 4.

FIG. 4 is an enlarged cross-sectional view of the essential part showing another embodiment. In this embodiment, the lower column 1 is composed of two angle members 11 and 12, and these angle members are symmetrically arranged with their apex corners 11a and 11b facing outward. And these angle members 11, 12
V-shaped guide portions are formed by the adjacent sides 11b and 12b of the above, and the height of the V-shaped guide portions is adjusted by vertically fitting one angle member 13 constituting the upper support column 5 on the inner surface side thereof. There is. In the figure, 14 and 15 are connecting members, and 16
Is a tightening bolt. In addition, the angle member 13 forming the upper support column 5 is formed by the adjacent side members 11 of the angle members 11 and 12.
It is also possible to guide vertically by fitting the outer surface of the V-shaped guide portion formed by b and 12b. In addition, as shown in FIG. 5, the apex angle of the angle member 13 that constitutes the upper support column 5 is set to the respective sides 11 of the angle members 11 and 12.
It may be slightly different from the apex angle of the V-shaped guide portion formed by b and 12b. In this case, when tightening with the tightening bolts 16, the outer surface of the angle member 13 and the sides 11b, 12b.
Since the angle with respect to the guide surface is different, the contact portions become local line contact and easily bite, so that firm fixing is possible.

FIG. 6 is an enlarged cross-sectional view of the essential part showing another embodiment. In this embodiment, the lower support column 1 is composed of two angle members 17 and 18, and the apex corners 17a and 18b of these angle members are arranged in parallel in the same direction, thereby adjoining adjacent angle members. Material 17, 1
A V-shaped guide portion is formed by one side 17b, 18b of 8,
The height of the V-shaped guide portion is adjusted by fitting one angle member 19 constituting the upper support column 5.
In the figure, 20 and 21 are connecting members, and 22 is a tightening bolt.

The angle material is not limited to the shaped steel, but may be a sheet metal working or the like as long as it is formed in an angle shape. Further, the material is not necessarily limited to a metal material, and can be formed of a hard resin or the like. Further, the size, the cross-sectional shape, the number of installations, and the like of the reinforcing bar supporting portion and the connecting member can be changed as necessary.

[0011]

According to the present invention, the following effects can be obtained based on the above configuration. (1) Since the lower strut and the upper strut are formed of the angle member, the closed space is eliminated, and the portion into which concrete does not easily flow in at the time of pouring is eliminated. As a result, the occurrence of cross-section loss can be prevented. (2) Since the upper and lower struts are made of angle members, a strut structure having sufficient rigidity can be obtained at low cost. (3) By forming the V-shaped guide portion with the angle material forming one of the columns and fitting the angle material forming the other column, both of them can be moved up and down by using the shape of the angle material as it is. Since the guide is given, the structure can be simplified. (4) Based on the V-shaped guide structure, when tightening and fixing, the two pillars are guided in a direction in which they closely contact each other according to the tightening force, so that a stronger fixed state can be obtained, and the tightening force is also increased. Since the upper and lower parts can be freely opened by loosening, it can be put to practical use with a lower processing accuracy than before.

[Brief description of drawings]

FIG. 1 is a front view showing an entire embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line AA in FIG.

3 is an enlarged sectional view taken along line BB in FIG.

FIG. 4 is an enlarged sectional view of an essential part showing another embodiment.

FIG. 5 is an enlarged sectional view of an essential part showing another embodiment.

FIG. 6 is an enlarged sectional view of an essential part showing another embodiment.

FIG. 7 is a perspective view showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Lower support, 2 ... Base plate, 3, 4 ... Angle material, 5 ... Upper support, 6 ... Reinforcing bar, 7 ... Reinforcing bar support part, 8 ... Connecting member, 9 ... Tightening bolt, 10 ... Connecting member, 11-13
... Angle material, 14, 15 ... Connecting member, 16 ... Tightening bolt, 17-19 ... Angle material, 20, 21 ... Connecting member,
22 ... Tightening bolt

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideaki Horiguchi 1313 Fujioka, Fujioka-machi, Shimotsuga-gun, Tochigi Prefecture (72) Inventor Yasuaki Akita 3-19-18 Kasubehigashi, Kasukabe City, Saitama Prefecture

Claims (4)

[Claims] 1. A height-adjustable reinforcing bar supporting device comprising a lower column having a base plate fixed to the lower part and an upper column vertically coupled to the lower column and having a reinforcing bar supporting part on the upper part thereof, wherein the lower part is provided. Each of the support columns and the upper support column is formed of an angle member, and a V-shaped guide portion is formed by the angle member forming any one of the support columns, and the angle member forming the other support column is fitted to the V-shaped guide portion. Reinforcing bar support device characterized in that both are combined so that they can be moved up and down. 2. The one side of each adjacent angle member by forming the lower support column from two angle members and symmetrically arranging these angle members with their apex portions inward. 2. The reinforcing bar according to claim 1, wherein the V-shaped guide portion is formed by the above-mentioned V-shaped guide portion, and one angle member that constitutes the upper strut is fitted into the V-shaped guide portion so that both are vertically movable. Support device. 3. One side of each of the adjacent angle members by forming the lower support column from two angle members and arranging the angle members symmetrically with each apex angle outward. The V-shaped guide portion is formed by the inner side surface or the outer side surface of the above, and one angle member that constitutes the upper strut is fitted into the V-shaped guide portion, and both are vertically joined. The reinforcing bar supporting device according to claim 1. 4. The V-shaped guide portion is formed by one side of each adjacent angle member by forming the lower support column from two angle members and arranging the angle members in parallel in the same direction. And the V
2. The reinforcing bar supporting apparatus according to claim 1, wherein one angle member that constitutes the upper support is fitted into the shape guide portion and both are vertically joined.